baber/WOPTO huggingface dataset:
Patent GB-1420716-A (GB)
Title: Olefin polymer composition
IPC: C08L33/00
Filed: 1974-02-06
Abstract: 1420716 Dihalo (pyridylthio) tin compounds UBE INDUSTRIES Ltd 6 Feb 1974 [24 Aug 1973] 5563/74 Heading C2C [Also in Division C3] Pyridylthio tin compounds of formula RSSnX 2 SR<SP>1</SP>, where X is halogen and R and R<SP>1</SP> are groups of formulµ wherein R 1  to R 8  are hydrogen, halogen, nitro, nitroso, amino, cyano, carboxyl, carbamoyl, thiocarbamoyl, C 2-11  alkoxycarbonyl, hydroxyl, hydrazinocarbonyl, mercapto, C 1-10  alkoxy, or acylamino; or phenyl, C 1-12  alkyl, C 2-12  alkenyl or C 7-12  aralkyl or alkaryl, optionally substituted by the above atoms or groups; not less than 2 of R 1  to R 4  and of R 5  to R 6  being hydrogen atoms or unsubstituted C 1-12  alkyl groups, may be prepared by reacting a stannous halide with the corresponding bis-2-pyridyl- or bis-N-oxido- 2-pyridyl-disulphide. Examples describe the preparation of (S1) dichloro bis-(2-pyridylthio)- tin from 2,2<SP>1</SP>-dipyridyl disulphide and stannous chloride, and for comparison from (R1) dichlorobis-(acetylacetonato)tin and 2-pyridine thiol, (R2) stannic chloride and 2-pyridinethiol or (R4) 2-pyridinethiol-stannic chloride complex and triethylenediamine, (S2) dibromo bis-(2- pyridylthio)tin from 2,2<SP>1</SP>-dipyridyldisulphide and stannous bromide, (S3) dichloro-bis-(3- cyano - 4,6 - dimethyl - 2 - pyridylthio)tin from bis - (3 - cyano - 4,6 - dimethyl - 2 - pyridyl) - disulphide and stannous chloride, (S4) dichloro bis - (3 - cyano - 4 - methyl - 6 - phenyl - 2- pyridylthio)tin from bis-(3-cyano-4-methyl-6- phenyl-2-pyridyl)disu]phide and stannous chloride, (S5) dichloro bis - (N - oxido - 2 - pyridylthio)tin from bis - (N - oxido - 2 - pyrridyl)disulphide and stannous chloride, (S6) dichloro bis- (4,6 - dimethyl - 2 - pyridylthio)tin from bis - (4,6- dimethyl - 2 - pyridyl)disulphide and stannous chloride, (S7) dichloro bis-(4-methyl-6-phenyl-2- pyridylthio)tin from bis - (4 - methyl - 6- phenyl-2-pyridyl)disulphide and stannous chloride, (S8) dichloro bis-(5-nitro-2-pyridylthio)tin from bis-(5-nitro-2-pyridyl)disulphide and stannous chloride, (S9) dichloro bis-(3-ethoxycarbonyl - 6 - methyl - 2 - pyridylthio)tin from bis- (3 - ethoxycarbonyl - 6 - methyl - 2 - pyridyl)- disulphide and stannous chloride, (S10) dichloro bis - (3 - cyano - 6 - methyl - 2 - pyridylthio)tin from bis - (3 - cyano - 6 - methyl - 2 - pyridyl)- disulphide and stannous chloride and (S11) diiodo bis - (2 - pyridylthio)tin from 2,2<SP>1</SP> - dipyridyl disulphide and stannous iodide. Further examples describe the preparation of intermediates (R9) 4,6-dimethyl-2-pyridinethiol from 3 - cyano - 4,6 - dimethyl - 2 - pyridinethiol and hydrobromic acid, (R11) 4-methyl-6-phenyl-2- pyridinethiol from 3-cyano-4-methyl-6-phenyl- 2-pyridinethiol and hydrobromic acid, (R13) 3- ethoxycarbonyl-6-methyl-2-pyridinethiol from ethanol and 3 - carboxy - 6 - methyl - 2 - pyridinethiol, and the conversion of these thiols, 3 - cyano - 4 - methyl - 6 - phenyl - 2 - pyridinethiol and 3 - cyano - 6 - methyl - 2 - pyridine thiol into the corresponding disulphides in the presence of sodium ethoxide and iodine.
Patent GB-1101821-A (GB)
Title: Method of cooking grain and beans in a continuous way
IPC: A23L7/10
Filed: 1965-02-09
Abstract: 1,101,821. Treating grain and seeds. G. I. ALTMAN and M. J. WARD. 9 Feb., 1965, No. 5564/65. Heading A2Q. [Also in Division A4] A continuous process for cooking grain (e.g. maize) and seeds (e.g. soya beans) comprises feeding the grain through an inlet into a cooking vessel to the interior of which is supplied steam under pressure, moving the grain through the vessel to an outlet thereof, and preventing the escape of steam from the cooking vessel through the inlet to material not yet passed through the inlet. As shown, a suitable apparatus comprises screw feed conveyer 38, rotary trap 28 into which gas (e.g. air) under pressure is fed via conduit 31 to prevent escape of steam from the cooking vessel, cooking pipe 2 with inlet 27, screw conveyer 13 and outlet 57, rotary trap 58 and cooler 60 which communicates with blower 65 for extracting the hot gas and steam, and has outlet 63 which leads to a drier (not shown). The screw conveyers 38, 13 and 62 are electrically driven. Water is fed into cooking pipe 2 by conduit 48 and steam under pressure by nozzles 53 arranged longitudinally and circumferentially of the pipe 2. In other embodiments the gas under pressure may be fed to the housing of the feed conveyer; two traps may be present at the inlet end of the cooking vessel; chain conveyer means may be present in the cooking vessel; and the cooking vessel may comprise a plurality of sections superimposed one upon the other.
Patent GB-694778-A (GB)
Title: Improvements relating to the production of ion-exchange resins
Inventor: KRESSMAN THEODORE ROGER ERNEST
IPC: C08F8/32
Filed: 1950-03-06
Abstract: In the production of anion-exchange resins, styrene or other mono-vinyl aryl compound such as acenaphthylene is polymerized in the presence of a cross-linking agent by the method of pearl polymerization to yield small spheres or beads, and anion-exchange properties are then imparted to the spheres or beads, the cross-linking agent being one of (a) a diester of acrylic acid or an alpha-substituted derivative of acrylic acid, such as ethylene dimethacrylate and glyceryl dimethacrylate or diacrylate, (b) a divinyl ester of a dibasic acid such as divinyl oxalate, (c) divinyl ether, and (d) a vinyl ester of either acrylic acid or an alpha-substituted derivative of acrylic acid such as vinyl methacrylate.  Anion-exchange properties may be imparted by haloalkylation followed by amination.  More than one mono-vinyl aryl compound or more than one cross-linking agent may be employed and polymerization may be effected in aqueous medium in the presence of benzoyl peroxide and kaolin.  Haloalkylation may be carried out by treating the copolymer with chloromethyl ether in the presence of a Friedel-Crafts catalyst or by using a monovinyl aryl compound containing alkyl groups substituted in the nucleus, such as methyl styrene, and halogenating these alkyl groups by reacting with a halogen, preferably chlorine.  Specifications 571,029, 577,707 and 654,706 are referred to.
Patent GB-892127-A (GB)
Title: Therapeutic preparations comprising steroids and vitamin d
IPC: A61K31/59
Filed: 1959-02-18
Abstract: Therapeutic compositions comprise a mixture of a therapeutic dosage of an anti-inflammatory steroid and Vitamin D the steroid being preferably an 11-oxygenated adrenal cortical steroid e.g. prednisolone or hydrocortisone.  The Vitamin D is stated to counteract the loss by the body of calcium resulting from the administration of the steroid.
Patent GB-140195-A (GB)
Title: Improvements in domestic fireplaces
IPC: F24B1/195
Filed: 1919-03-07
Abstract: 140,195. Mason, F. March 7, 1919. Open fire-places.-A fire-place of the type which is moulded in one piece from cement or the like, with or without metallic reinforcement, comprises a slab front A adapted to fit within the brick jambs, a forwardly-projecting back C with an open recessed fire-space having a grate opening F and an ash-chamber beneath it enclosed by a bow or straight front G or H, together with an enclosed flue passage E to the chimney.
Patent GB-770296-A (GB)
Title: Improved heat exchanger and method of making same
IPC: F28F1/12
Filed: 1954-02-26
Abstract: 770,296. Making heat exchangers. GENERAL MOTORS CORPORATION. Feb. 26, 1954 [March 20, 1953], No. 5668/54. Classes 83 (2) and 83 (4). [Also in Group XIII] Stamping.-A method of making a sinuous, flat-sided heat exchanger tube having a number of parallel passes joined by bends comprises longitudinally folding a metal strip, bonding the free edges of the strip together to form a flat conduit, bending the conduit to form the flat passes joined by integral return bends, expanding the conduit against former blocks by fluid pressure at the same time allowing the inside walls to be distorted away from the outside walls and subsequently securing fins between adjacent sides of the parallel passes of the conduit. In the form shown a thin strip of aluminium copper or steel is roughened on one side as by sand-blasting and passed between rollers to form creases 22, 24, 26 (Fig. 1). The strip is then folded with the sand-blasted surface inside and the edges of the strip are arc welded together in an inert gas atmosphere at 28 (Fig. 2). The ends of the strip are closed and provided with fluid inlet and outlet pipes 36, 38 and the sealed strip is then folded to serpentine form (Fig. 4) and inserted into a fixture comprising former blocks 46, 48 (Figs. 5 and 6) providing between them a serpentine passage 42. Fluid is injected through the inlet pipe 36 and the resultant pressure expands the strip against the former blocks 46, 48 to form the sinuous tube. The inner walls of the tube bends are expanded into cut-away portions 47 (Fig. 5) in the former blocks 46. The tube is then removed from the fixture, the usual knock-out pins 53 (Fig. 6) being provided for this purpose, and fins in the form of perforated metal strips folded to rectangular waveform are brazed to the flat side walls of the tube (Fig. 10, not shown).
Patent GB-162466-A (GB)
Title: Improvements in and relating to bearings
IPC: F16C27/04
Filed: 1920-02-25
Abstract: 162,466. Scammell, W. G., Norton. W. J., and Farmer & Sons, Ltd., Sir J. Feb. 25, 1920. Roller bearings.-Each roller bears on a number of flexible elements interlocking with one of the race rings. In the form shown, the flexible elements have the form of a helical spring d of T-shaped, dovetailed, round, or other section, interlocking with similarly-shaped helical grooves c in a sleeve b or in the shaft &c. A clearance e affords radial resilience, and the convolutions of the helix project sufficiently to form a number of contacts with the rollers. Stops may be provided to prevent creeping. More than one helix may be used, or the flexible elements may be in the form of separate rings, split or otherwise. In a modification, the helix and groove are in the outer element a<1>.
Patent GB-752908-A (GB)
Title: Improvements in or relating to mechanical clutches
Inventor: KELLEIGH WALDO J
IPC: F16D13/26
Filed: 1954-02-26
Abstract: 752,908. Positive clutches. GENERAL CONTROL CO. Feb. 26, 1954, No. 5710/54. Class 80(2) A positive clutch for the electric timer of Specification 679,596 [G r o u p XXXVII] has an axially slidable driving member 16 provided on an internally coned surface with radial serrations 32 which deform the continuous surface of a synthetic rubber ring 33, secured to the driven member 38, when thrust axially to clutch the latter in any relative angular position. The member 16 is slidably keyed to an input member 11 by a radial pin 26 on the former or by two axial pins on the end face of the latter, and an oil-impregnated sintered metal bush 14 is pressed in the member 16.
Patent GB-707556-A (GB)
Title: Improvements in and relating to filters
Inventor: PHIPPS JOHN WILDEY
IPC: B01D39/20
Filed: 1951-03-09
Abstract: In a process for making a filter for use in melt spinning or extrusion a compact mass of substantially uniform spherical particles, preferably of glass, is caused to stick together at the points of contact of the particles while they are held in a restraining ring, preferably of metal, placed on a flat surface. The ring preferably decreases in internal diameter from top to bottom. In an example spheres of diameter 0.035 cms. of lead glass are placed in a former, comprising a steel alloy ring decreasing slightly in diameter in a series of steps from top to bottom, on a plane stainless steel block, and are packed tightly by the surface tension effect of water with which they are wetted. A straight edge is dragged across the ring to level off the contents and the whole is dried before placing in an oven at a temperature of 700 DEG  C. where it remains for 15 minutes.  After cooling, the ring together with the disc of glass spheres set within it is removed from the stainles steel block by slight tapping.  The choice of steel alloy for the ring depends upon the relative expansion coefficients of the glass and the steel.  To facilitate salvaging of the ring on disposal of the glass disc a close-fitting thin metal liner may be incorporated between the glass and the ring and it may be so shaped that a flange lies in contact with the ring or the glass or with both.  This flange may act as a gasket in, e.g., melt spinning apparatus.  The filter may be used while still in the restraining ring and may be strengthened by supports, extending across its face, such as struts or metal gauze attached to the restraining ring.  The stainless steel block on which the filter is placed during making may be oxidized. The spherical particles may be coated with a very thin layer of adhesive (which according to the Provisional Specification may be resin) to stick them together.
Patent GB-872386-A (GB)
Title: Improvements relating to the stopping of internal combustion engines
Inventor: YELLOWLEY GEORGE
IPC: F01L13/00
Filed: 1957-02-20
Abstract: 872,386. Stopping; valve gears. NORTH EASTERN MARINE ENGINEERING CO. Ltd. Feb. 20, 1958 [Feb. 20, 1957], No. 5754/57. Classes 7(5) and 7(6). In an internal-combustion engine comprising one or more cylinders, each provided with a vent and means for controlling the opening and closing of the vent, the control means includes a movable valve member which has two positions of operation in which the control means are arranged to hold the vent or vents open to atmosphere when the movable member is in one position and to open and close the vent or vents in timed sequence when the movable valve member is in the other position of operation, the arrangement being such that when the movable member is in the last mentioned position of operation the vent of each cylinder is closed during at least part of the compression stroke of its associated piston and is opened at or near the end of the compression stroke so as to increase the resistance to the turning of the engine shaft. The invention is applicable to stopping large marine engines and compression ignition engines. When it is desired to stop the engine the fuel control operating lever 48 is moved to a central position. As a result, air or hydraulic fluid is admitted through the pipe 40 to the top of the distributer shuttle 56 and flows therefrom through the pipes 36 to all the cylinder relief valves 14. The relief valves are thereby held open so as to brake the engine. The engine speed falls to about 20 r.p.m. whereupon the operating lever 48 is moved to the left as viewed in Fig. 3. Air or hydraulic fluid is then supplied to the bottom end of the distributer shuttle 56 so as to cause it to move upwards to the position shown in Fig. 3. Then air or hydraulic fluid is supplied to the relief valves 14 in timed sequence. Each cylinder relief valve 14 is closed during the compression stroke and is open during the first 90 degrees of the expansion stroke. The engine cylinders each comprise opposed pistons 10, 12. The distributer 38 is conveniently driven off the engine cam shaft 50. Relief valves in accordance with Specification 745,714 (referred to) are suitable for the purpose of the invention. Specification 789,544 also is referred to in the Provisional Specification.
Patent GB-792506-A (GB)
Title: Improvements in or relating to door mountings and door counter-balancing mechanism
IPC: E05F1/02
Filed: 1955-02-25
Abstract: 792,506. Door-operating appliances; door stays. COLLINS, F. J. Feb. 17, 1956 [Feb. 25, 1955], No. 5755/55. Class 65(1) A garage door is hinged along its upper edge to open outwardly and upwardly, a stay being provided which is pivoted at one end to the inside of the door or the door frame and which at the other end slidably, or by means of a roller, engages a track on the door frame or door, the stay being loaded to apply an upward force to resist in opening the door. In Fig. 1 stays 16 pivoted at 13 to the sides of the door 10 carries on their free ends rollers 20 which run in channels 19. Cards 23 attached at 24 to the stays pass over pulleys 30, 34 and are attached to a weight 36, such that when the door is given an initial opening movement it opens automatically. In the open position each roller 20 engages over a bolt 38 or in a hole in the channel 19. The weight 36 may be suspended on an arm like a pendulum. The weight may be replaced by an electric or hydraulic motor or by a single spring attached to the cords or a spring attached directly to each stay. In another embodiment, Fig. 13, the stay 16 is pivoted to the door frame and the roller 20 runs on the door, a spring 65 or a cord and weight arrangement moving the stay upwards. In the open position the roller engages a recess 1.
Patent GB-134468-A (GB)
Title: An Improved Non-returnable Key-wedge.
Inventor: BOONZAIER WILHELM GOERT
IPC: F16B2/14
Filed: 1919-03-10
Abstract: 134,468. Boonzaier, W. G. March 10, 1919. Wedges; cotters. -A wedge for fixing handles to tools and for use in carpentry &c. has two or more prongs 7, 8, the edges of which are bevelled alternately on different sides, so that the prongs spread out when the wedge is driven into wood. For use with metal, a slot prepared to receive the wedge terminates in one or two cvlindrical bores 15, 16 which receive and spread the bevelled edges. A key or feather 10 on the wedge serves for securing wheels, collars, &c. on shafts. Refcrence has been directed by the Comptroller to Specification 27808/02.
Patent GB-1362151-A (GB)
Title: Spirit levels
IPC: G01C9/28
Filed: 1973-02-06
Abstract: 1362151 Spirit levels MESSWERKZEUG - KG GUSTAV ULLRICH 6 Feb 1973 [7 Feb 1972] 5895/73 Heading G1F A spirit level comprises a hollow body 1 having longitudinal side walls which are each provided with a longitudinal groove 2, the grooves 2 being parallel and arranged to receive and immovably support lateral projections (5) Figs. 2 and 3 (not shown) on a support member for a bubble unit 8. The support member, which can be fixed in the grooves 2 by adhesive or by welding, may have up-standing end portions 6 and the bubble unit 8 may be held in a window 3 of the body 1 by plates 10 which are clamped to the body by screws 11 threaded into the support member.
Patent GB-622020-A (GB)
Title: Method of making electric batteries
IPC: H01M6/22
Filed: 1947-03-03
Abstract: 622,020. Batteries. KOEHLER MANUFACTURING CO. March 3, 1947, No. 5985. Convention date, Jan. 6. Drawings to Specification. [Class 53] The plates and separators of an accumulator are immersed in the electrolyte and the battery allowed to stand for five to ten days before the first charging operation. The separators may consist of balsa wood which has been subjected to heavy compression or treated with boiling water and alkali. The electrolyte may be sulphuric acid of specific gravity 1.4. Specifications 460,658 and 543,847 are referred to.
Patent GB-878638-A (GB)
Title: Process and apparatus for determining quotient values relating to dynamic unbalance
IPC: G01M1/02
Filed: 1958-02-25
Abstract: 878,638. Measuring rotor unbalance electrically. AVERY Ltd., W. & T. Feb. 25, 1958 [Aug. 29, 1957], No. 5985/58. Addition to 878,637. Class 40 (1). The expression for the unbalance masses of a rotor in preselected planes in terms of the unbalance forces at the bearings involves the distances between the balancing and bearing_ planes, and the invention relates to a potentiometric device for determining . the required quotients of the distances. The distances between the bearing planes L, R (Fig. 1), and the balancing planes 1, 2 are measured on a scale 115b, and repeated by the contacts 202 &c. (Fig. 2), of slide-wire potentiometer 111 adjusted by calibrated control knobs XL &c. The voltages between selected contacts are indicated by voltmeters JL<SP>1</SP> &c. The currents through the slide wire are adjusted by rheostats PM1, PM2 to make the voltage of the divisor equal to unity, when the voltmeters indicate the values of the quotients. The apparatus is shown duplicated to allow two sets of quotients to be determined simultaneously. Specifications 735,657 and 751,688 also are referred to.
Patent GB-433958-A (GB)
Title: Improvements relating to tins and like containers which are provided with lids
IPC: B65D51/18
Filed: 1934-02-23
Abstract: 433,958. Tins. SCOTT & TURNER, Ltd., Andrews House, Gallowgate, Newcastleon-Tyne, and DIAMOND, J. E., Donore, Northumberland Avenue, Gosforth, Northumberland. Feb. 23, 1934, No. 6015. [Classes 66 and 125 (iii)] The lever or other lid of a tin &c. is provided with a convering c of flexible transparent material, the edge or skirt of which is secured to the wall of the container by means of an adhesive band e of paper or cloth.
Patent GB-1465152-A (GB)
Title: Method of producing a refractory material and material produced by such a method
IPC: C04B35/10
Filed: 1974-02-11
Abstract: The material made from alumina and titanium carbide has a mean transverse breaking strength of at least 67.9 + 14.7 kg/mm<2>, a mean Rockwell A hardness of 93.8 and a mean Knoop hardness of 3477. It is produced by sintering a powder mixture of 70 % of alumina and 30 % of titanium carbide while the pressure is varied during the heating under specified conditions. The material can be used as refractory material and for the production of cutting tools for metals.
Patent GB-687926-A (GB)
Title: Improvements relating to target towing apparatus for aircraft
IPC: B64D3/02
Filed: 1949-03-07
Abstract: 687,926. Actuation of switches. M. L. AVIATION CO., Ltd., and LOBELLE, M. J. O. March 7, 1950 [March 7, 1949], No. 6187/49. Class 38 (v) [Also in Groups XXVI, XXX and XXXIII] The positive and negative terminals are respectively connected to slip rings 139, 140 embedded in an insulating commutator 134 which is mounted to mesh with a screw-thread 135 on an extension 141 of shaft 74, and engaged frictionally on opposite sides by two sets of contact fingers 137, 138 so that it moves left or right along extension 141 according to the direction of rotation of shaft 74, stops 136 limiting the movement which movement switches over the current from one to the other set of contact fingers.
Patent GB-1166689-A (GB)
Title: Improvements in or relating to Conveyor Systems
Inventor: KLEIN ROBERT JUNIOR
IPC: B65G19/26
Filed: 1967-02-09
Abstract: 1,166,689. Conveyer systems. R. KLEIN. 9 Feb., 1967 [11 Feb., 1966], No. 6239/67. Heading B7L. A conveyer system comprises a container 1, Fig. 1, having running wheels 28, 29, Fig. 3, engaging rails 27 and propelled therealong by an endless chain 2 having links 3 connected by pins 4 and running in a guide channel 17. The invention is characterized by a coupling device 13, 14 for releasably connecting the container 1 with the chain 2. As shown in Fig. 1, a catch lever 13, having a notched end 24 engageable with a chain pin 4, and a release lever 14 are each rotatably mounted on a common pivot 12 carried by the container. Each lever 13, 14 has a trapezoidal cut-out 23 or 19 which cooperates with a roller 7 on one end of a lever 6 pivoted at 5 to the container 1 and under the urge of a spring 9. Stops 10, 11 limit the movement of the lever 6. The other end of the lever 6 is connected to bumpers 8. At a station where it is desired to stop a container, a removable slide member 15 is secured to the chain guide 17 by a wing nut 16. When the lever 14 engages the slide the lever 14 is rotated and moves the roller 7 and lever 6 which roller in turn moves the lever 13 from engagement with the chain. Similarly if the container abuts a stationary container 1<SP>1</SP> the lever 6 is operated to operate the levers 13, 14.